Make a film where you see how long you can survive only eating foods that are shaped like, or are imprinted with, logos.
McGriddle ✓
M&Ms ✓
Oreos ✓
Liquids would be a problem, but I would let you get away with drinking Coca-Cola BUT ONLY FROM A HOBBLE-SKIRT BOTTLE.
You forgot speghettios, goldfish, etc.